Things I build, break, fix, and write about

16 September 2026
Pre-boot authentication for BitLocker

TPM-only BitLocker is convenient, but convenience is not the same as a proper boundary. BitLocker PINs push that line back to pre-boot, which is where I want it if the machine might be stolen, tampered with, or left somewhere I do not trust.

15 September 2026
Single-sided BPool joins drain mOCEAN via SideStaking

Ocean Protocol BPool single-sided join exit math is where this one falls apart, and I have a soft spot for bugs that look tidy until another contract...

15 September 2026
ecrecover checks for Lixir Vault permit signatures

Lixir Vault permit signatures looked ordinary until the final check was missing. If `ecrecover` only needs to return a nonzero address, you have not...

14 September 2026
Chaining logic bugs in Microsoft Edge sandbox escape

Microsoft Edge sandbox escape chains do not need memory corruption if the trust checks are loose enough. Orange Tsai’s Pwn2Own chain was nasty...

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